/* 此文件禁止更改 */
body,div,img,span,a,ul,ol,dl,dt,dd,h1,h2,h3,h4,h5,h6,form,input,button,p,table,tr,b,i,em,textarea{
  padding: 0;
  margin: 0;
}

ul,ol,dl{
  list-style: none;
}

a{
  text-decoration: none;
}

body,html{
  /* 字体大小12, 行高为1倍行高,字体微软雅黑 */
  font: 12px/1 "微软雅黑";
  width: 100%;
  height: 100%;
}

button{
  background-color: #fff;
  border: none;
  cursor: pointer;
  outline: none;
}

input{
  border: none;
  outline: none;
  background-color: #fff;
}

h3{
  font-weight: normal;
}

img{
  vertical-align: middle;
  border: none;
}

textarea{
  resize: none;
}

.clearfix::after{
  content: '';
  display: block;
  clear: both;
  overflow: hidden;
  height: 0;
  visibility: hidden;
}

.main{
  width: 1500px;
  margin: 0 auto;
}